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CIDR Range

119.173.40.0/23

Addresses
512
512
Sub-ranges
0+
within this block
PTR Density
100.0%
512 of 512 IPs have PTR

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

80/100
Trusted
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

First and last addresses in 119.173.40.0/23

119.173.40.0/23 runs from 119.173.40.0 to 119.173.41.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 119.173.0.0/17.

Announced prefix
Origin AS
Announcement samples
15,683
Last seen
2026-11-03 05:41:20

Frequently Asked Questions

What is 119.173.40.0/23?

119.173.40.0/23 is a CIDR network block containing 512 IPv4 addresses (from 119.173.40.0 to 119.173.41.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 119.173.40.0/23 network?

The 119.173.40.0/23 range is allocated to JCOM Co., Ltd. and announced via AS9824 from Japan.

Last updated: 2026-11-03 05:54:05 UTC
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